Home / 189,138.32-261,117.48-125,563.04

Finding the Fourth Proportional to 189,138.32, 261,117.48 and 125,563.04

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Solution

The fourth proportional to 189,138.32, 261,117.48 and 125,563.04 is: 173,347.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,138.32 : 261,117.48 = 125,563.04 : x
  2. Step 2: Convert to fraction form
    189,138.32/261,117.48 = 125,563.04/x
  3. Step 3: Cross multiply
    189,138.32x = 261,117.48 × 125,563.04
  4. Step 4: Simplify right side
    189,138.32x = 32,786,704,585.94
  5. Step 5: Solve for x
    x = 32,786,704,585.94/189,138.32
  6. Step 6: Final answer
    x = 173,347.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.